Question

Sendo A= {-1,2,3,4} e B={ 0,1,2,3,7} determine AUB: A-B:

Answer 1

Resposta:

A x B = {(-1,0),(-1,1),(-1,2),(-1,3)(-1,7),(2,0),(2,1),(2,2),(2,3),(2,7),(3,0),(3,1),(3,2),(3,3),(3,7),(4,0),(4,1),(4,2),(4,3),(4,7)}

espero ter ajudado!